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![Image](https://www.ltraengineers.net/wp-content/uploads/2014/03/shutterstock_126085328-1-600x350.jpg)
LTRA provided survey support services to another consultant to include verifying primary survey control, establishing secondary control, performing topographic survey and preparing a Digital Terrain Model, and utilizing terrestrial laser scanning, GPS, and reflectorless total stations to monitor potential movement of various walls along a 2-mi segment of PGBT mainlanes. LTRA also surveyed all geotechnical bore holes and SUE markings within the project limits.